Tetraneuris scaposa

Tetraneuris scaposa (common names stemmy four-nerve daisy^[2] and stemmy hymenoxys) is a North American species of flowering plant in the sunflower family. It is native to the southwestern and south-central United States (Nebraska, Kansas, Oklahoma, Texas, New Mexico, Arizona, Utah, and Colorado) and northern Mexico (Chihuahua, Coahuila, Nuevo León, Tamaulipas, San Luis Potosí, and Zacatecas).^[3][4][5]

Tetraneuris scaposa
Conservation status
Apparently Secure  (NatureServe)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Tetraneuris
Species:	T. scaposa
Binomial name
Tetraneuris scaposa (DC.) Greene 1898
Synonyms[1]
Synonymy Cephalophora scaposa DC. 1836 Actinea angustifolia (Rydb.) A.Nelson Actinea linearis (Greene) A.Nelson Actinea scaposa (DC.) Kuntze Actinella fastigiata (Greene) A.Nelson Actinella glabra Nutt. Actinella lanuginosa Buckley Actinella linearis (Nutt.) A.Nelson Actinella scaposa (DC.) Nutt. Gaillardia roemeriana Scheele Hymenoxys glabra (Nutt.) Shinners Hymenoxys scaposa (DC.) K.F.Parker Picradenia scaposa (DC.) Britton Ptilepida scaposa (DC.) Britton Tetraneuris angustata Greene Tetraneuris angustifolia Rydb. Tetraneuris fastigiata Greene Tetraneuris glabra (Nutt.) Greene Tetraneuris linearis (Nutt.) Greene Tetraneuris stenophylla Rydb.

Tetraneuris scaposa is a perennial herb up to 40 cm (16 inches) tall. It forms a branching underground caudex sometimes producing as many as 100 above-ground stems. Leaves are concentrated low on the stem, close to the ground. Flower heads can either be present individually one per stem, or multiply in tight clumps. Each head has 12–26 ray flowers surrounding 25–180 disc flowers.^[6]

Uses

The Zuni people use an infusion of it as an eyewash. The Zuni believe that this eyewash is not for people with a "bad heart".^[7]